CD22204
Data Sheet February 1999 File Number
1696.4
5V Low Power Subscriber DTMF Receiver
The CD22204 complete dual tone multiple frequency (DTMF) receiver detects a selectable group of 12 or 16 standard digits. No front-end pre-filtering is needed. The only externally required components are an inexpensive 3.579545MHz TV ‘‘colorburst’’ crystal (for frequen...
